I rented a car throught Rentalcars.com and Eurocars and i purchased full insurance at the same time, When i arrived at the Eurocar rental desk at The Manchester Airport, England a very arrogant and rude man by the name of Al told me he would not accept my insurance and i had to buy from him for a very high inflated price.
I did call Rentalcars.com and they told me Al was being a awkward but there was nothing i could do about it i had to pay double the car rental rate just for the insurance alone. This was not at all what i had purchased when i made the reservation for the car and did cause me a great deal of problem.
DO NOT USE RENTALCARS,COM THEY WILL RIP YOU OFF.